Automatically sealing tiltable door panel system

ABSTRACT

A sliding door system can include a tiltable sealing mechanism such that, when a door panel is slid to a closed configuration, one or more seal elements form a seal between the door panel and its surroundings at the top, bottom, and/or sides of the door to reduce or prevent infiltration or communication of gases or liquids such as air or water. Manual or motor driven movement of the panel can move an actuation mechanism to extend the seals around the door. The sealing member can include weather stripping, brush or another seal element for sealing contact with a header, floor, door, frame, or other surface. Multiple door panels can be arranged to form a door panel system.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. application Ser. No.12/999,433, filed on Dec. 16, 2010, which is a U.S. National Phase ofInternational Application No. PCT/US2009/047540, filed on Jun. 16, 2009and published in English on Dec. 23, 2009, which claims the benefit ofpriority to U.S. Provisional Application No. 61/073,320, filed Jun. 17,2008, each of which is incorporated in its entirety by reference herein.Any and all priority claims identified in the Application Data Sheet, orany correction thereto, are hereby incorporated by reference under 37CFR 1.57.

BACKGROUND

1. Field of the Invention

This application relates to door seals and, more specifically, to asliding door system including a sealing mechanism for a sliding doorpanel that is actuated when the door is in a predetermined position.

2. Description of the Related Art

Various sliding doors and door systems have long been a desirable optionfor providing access to residences, businesses and other structures asthey can provide a large opening without requiring a large swing area,as might be required with a swinging door of the same size. Moreover, insome door systems, two or more sliding door panels have been arranged,typically sliding on parallel tracks, to form a “multislide” door systemthat can span a relatively large opening. The individual door panels ofa multislide door system can include relatively large transparent ortranslucent windowpanes to provide access to a panoramic view or a largeamount or light even when the door system is closed. Substantially allof the door panels of certain multislide systems can be retracted into apocket in an adjacent wall, such that when the door system is open, anindoor/outdoor building space is created.

In some multislide door systems, a lower track, on which one or moredoor panels slides, is recessed into the floor such that when the doorsystem is open, there is no threshold or obstacle over which to step (orstub one's toe). Additionally, the recessed track creates a relativelyseamless visual transition between indoor and outdoor space.

While sliding doors and multislide systems can be desirable for thereasons noted above, some sliding door systems are difficult to seal.Many sliding door systems include some type of weather stripping or abrush along a lower edge of each door panel to form a seal with thefloor surface. However, in order to effectively seal, these types ofweather stripping or brushes must slide along the floor while the doorsystem is being opened or closed. Accordingly, the weather stripping canwear rather quickly until it loses effectiveness at forming a seal. Ifthe unit is adjusted downward in order to close the gap too much, theadded friction will not allow the panel to slide freely. Many attemptsto just add brushes to reduce the friction will allow water and airinfiltration. Moreover many of these types of systems do not have a wayto reduce air infiltration at the header, typically they have some typeof guide block in the header profile that guides the panel as it issliding and only have some type of brush that glides against the panel.Thus, many of these systems cannot be easily reconfigured to compensatefor the wearing of the weather stripping, or the gradual shifting of adoor frame.

Some systems include relatively large lever handles on each door panelto allow a user to raise and lower the panel slightly (such as raisedfor sliding, lowered for sealing). Moreover, most of these systemscannot be adjusted via the wheels to compensate for a non-level floor.This means that once the panel is lowered to the sealing position thepanel resting on the non-level floor will not be level. On larger panelsthis becomes an issue due to the fact that the leading edge will notrest plumb against the jamb. This may prevent the panel interlockersfrom sealing, thereby allowing air infiltration. One trend in thesliding door industry is to automate these systems so that a motor pullsand/or pushes all the panels open at the touch of a button. Attempts tocombine automated open and closure systems with a system that lowers toseal is very cost prohibitive. In certain instances the large handleneeded to leverage the heavy panels into the up and down position thatare mounted on each panel hinders the panel stack (e.g., many panelsgoing in one direction) from stacking flush to each other in the openposition. In some instances large handles may prevent the panels fromgoing all the way into the pocket.

SUMMARY OF THE INVENTION

The present application discloses various embodiments of a sliding doorsystem and a door panel for a sliding door system that offer certainadvantages in view of the above-noted shortcomings of existing doors.The details of various embodiments are set forth in the accompanyingdrawings and the description below. Other features and advantages willbe apparent from the description and drawings, and from the claims.

In certain embodiments, the door systems and door panels disclosedherein can include a movable sealing member that is moveable to a first,extended position to form a seal with a floor surface at a desiredposition of a door panel (such as a closed position). The sealing membercan move to a second, retracted position at other positions of the doorpanel. In certain embodiments, the sealing system forms a seal with thetop surface of the door panel at a closed position. In certainembodiments, a sealing system forms seals with one or two sides of thedoor panel and an adjacent door panel or wall or other structure. Incertain embodiments the sealing system uses elements at the top of adoor to seal the top of the door and/or elements at the bottom of a doorto seal the bottom of the door. In certain embodiments the sealingsystem uses elements at the top, bottom and/or one or more sides of thedoor to seal respective sections

In certain embodiments, a sliding door system comprises a door frame,and a door panel. In one embodiment, a door frame comprises a header anda lower track. In one embodiment, the header defines an upper edge ofthe door frame and has an upper track. The lower track defines a loweredge of the door frame. In one embodiment, the door panel is slideablymounted on the upper track and the lower track. In one embodiment, thedoor panel comprises a sealing member and an actuator. In oneembodiment, the sealing member is movably mounted at a lower edge of thedoor panel. The sealing member is movable between a first position inwhich the sealing member is extended downward with respect to the doorpanel, and a second position in which the sealing member is retractedwith respect to the door panel. The actuator is configured to advancethe sealing member into the first position when the door panel reaches apredetermined actuation location on the upper track and/or the lowertrack.

In other embodiments, a door panel comprises a first door stile, asecond door stile, an upper rail, a lower rail, an upper slidingmechanism, and a sealing mechanism. The first door stile defines a firstside edge. The second door stile defines a second side edge opposite thefirst side edge. The upper rail defines an upper edge. The lower raildefines a lower edge. The central area is bounded by the first doorstile, the second door stile, the upper rail, and the lower rail. Theupper sliding mechanism is configured to slideably mount the door panelto a header of a door frame. The sealing mechanism comprises a sealingmember and an actuator. The sealing member is positioned on the lowerrail and is movable between a first position in which the sealing memberis extended downward with respect to the lower rail, and a secondposition in which the sealing member is retracted with respect to thelower rail. The actuator is configured to move the sealing memberbetween the first position and the second position.

In various embodiments, a sealable sliding door system can include aheader, a track and a door panel. In one embodiment, the track isparallel to the header. In one embodiment, the door panel is slideablymoveable along the track and the header. In one embodiment, the doorpanel includes a first side edge, a second side edge, an upper edge anda lower edge. In one embodiment the door panel includes a sealing memberthat is movably actuatable with respect to a sealing edge of the doorpanel. In one embodiment, the sealing member is movably actuatablebetween a retracted position and a sealed position. In one embodiment,the retracted position configured for slideable movement of the doorpanel along the track. In one embodiment, the sealed position closing adistance between the sealing edge of the door panel and a correspondingadjacent surface. In one embodiment the door panel includes an actuatorconfigured to advance the sealing member into the sealed position whenthe door panel reaches a predetermined location corresponding to aclosed configuration.

In one embodiment, the door panel includes a first stile correspondingto the first side edge of the door panel. In one embodiment, the doorpanel includes a second stile corresponding to the second side edge ofthe door panel. In one embodiment, the door panel includes an upper railcorresponding to the upper edge of the door panel. In one embodiment,the door panel includes a lower rail corresponding to the lower edge ofthe door panel. In one embodiment, the door panel includes a centralarea bounded by the first door stile, the second door stile, the upperrail, and the lower rail. In one embodiment, movement of the door panelwith respect to the track defines a sliding axis of the door panel,wherein the door panel has a length along the sliding axis, and whereinthe sealing member has a length that is substantially equal to thelength of the door panel. In one embodiment, the sealing member isconnected to one or more seal actuation mechanisms comprising at least athree point linkage. In one embodiment, the sealing member is connectedto one or more seal actuation mechanisms comprising a scissor mechanism.In one embodiment, the sealing edge corresponds to the lower edge of thedoor panel and the corresponding adjacent surface is a floor surface. Inone embodiment, the floor surface is substantially non-parallel with thelower edge of the door panel.

In one embodiment, sealable sliding door system includes a secondsealing edge corresponding to an upper edge of the door panel, where thesecond sealing edge is configured to reduce a second distance betweenthe upper edge of the door panel and the header when the door panelreaches the predetermined location corresponding to the closedconfiguration. In one embodiment, the sealable sliding door includes atleast one actuation surface and at least one corresponding door tiltinginterface configured to tilt the door panel when the door panel reachesa predetermined location corresponding to the closed configuration. Inone embodiment, movement of the door panel in a tilt direction reducesthe second distance. In one embodiment, the sealable sliding door systemalso includes a seal element disposed between the upper edge of the doorpanel and the header. In one embodiment, the sealing member comprises asealing bar formed by an extrusion process, and a sealing strip disposedon the sealing bar. In one embodiment, the door panel also includes abiasing member configured to bias the sealing member into the retractedposition. In one embodiment, the sealable sliding door system includes asecond door panel slideably moveable along a second track and theheader. In one embodiment, the sealable sliding door system includes amotor configured to slide the door panel along the track to selectivelyopen and close the door panel. In one embodiment, the actuator comprisesan actuation mechanism with a substantially horizontal transfer memberslideably disposed and moveable within or near a lower edge of the doorpanel. In one embodiment, the actuation mechanism comprises at least oneroller mechanism configured to roll on an actuation surface on theheader.

In various embodiments, a door panel includes a first door stiledefining a first side edge, a second door stile defining a second sideedge opposite the first side edge, an upper rail defining an upper edge,and a lower rail defining a lower edge. In one embodiment, the doorpanel includes a central area bounded by the first door stile, thesecond door stile, the upper rail, and the lower rail. In oneembodiment, the door panel includes an upper sliding mechanismconfigured to slideably mount the door panel to a header of a doorframe. In one embodiment, the door panel includes a sealing mechanismwith a sealing member positioned on the lower rail and movable between afirst position and a second position. In one embodiment, the firstposition has the sealing member extended downward with respect to thelower rail. In one embodiment, the second position has the sealingmember retracted with respect to the lower rail. In one embodiment, thedoor panel includes an actuator configured to move the sealing memberbetween the first position and the second position.

In one embodiment, the actuator includes an actuation mechanism and atransfer member coupling the actuation mechanism to the sealing member.In one embodiment, the actuation mechanism includes a roller mechanismconfigured to roll on an actuation surface on the door frame. In oneembodiment, the roller mechanism is rotatably mounted to the upper railand configured to roll on an actuation surface on the header of the doorframe. In one embodiment, the transfer member extends through one of thefirst door stile and the second door stile. In one embodiment, theactuator includes a first roller mechanism mounted to the upper rail andconfigured to roll on an actuation surface on the header of the doorframe. In one embodiment, the actuator includes a second rollermechanism mounted to the upper rail and configured to roll on anactuation surface on the header of the door frame. In one embodiment,the actuator includes a first transfer member extending through thefirst door stile and coupling the first roller mechanism to the sealingmember. In one embodiment, the actuator includes a second transfermember extending through the second door stile and coupling the secondroller mechanism to the sealing member.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other aspects of embodiments of the present invention will nowbe described in detail with reference to the following drawings.

FIG. 1 is a schematic front perspective view of a door panel systemincluding four door panels according to one embodiment of the presentinvention;

FIG. 2 is a schematic side perspective view of tracks for the door panelsystem of FIG. 1.

FIG. 3 is a schematic front elevational view of one embodiment of doorpanel having a movable sealing member in a retracted configuration;

FIG. 4 is a schematic bottom view of the door panel of FIG. 3;

FIG. 5 is schematic side sectional view of the door panel of FIG. 3;

FIG. 6 is a schematic front elevation view of the door panel of FIG. 3with the movable sealing member in an extended or closed configuration;

FIG. 7 is a schematic side sectional view of the door panel of FIG. 6;

FIG. 8 is a schematic front elevational view of another embodiment ofdoor panel having a movable sealing member in a retracted configuration;

FIG. 9 is schematic side view of the door panel of FIG. 8;

FIG. 10 is a schematic front elevation view of the door panel of FIG. 8with the movable sealing member in a closed configuration;

FIG. 11 is a schematic side view of the door panel of FIG. 10;

FIG. 12 is a schematic side view of an actuation mechanism in aretracted position according to one embodiment of the present invention.

FIG. 13 is a schematic side view of the actuation mechanism of FIG. 12in an extended position.

FIG. 14 is a schematic side perspective view of an actuation mechanismwith a seal actuation mechanism in a retracted position according to oneembodiment of the present invention.

FIG. 15 is a schematic side perspective view of the actuation mechanismwith a seal actuation mechanism of FIG. 14 in an extended position.

FIG. 16 is a schematic side perspective view of a seal actuationmechanism in a retracted position according to one embodiment of thepresent invention.

FIG. 17 is a schematic side perspective view of the seal actuationmechanism of FIG. 16 in an extended position.

FIG. 18 is a schematic side view of a door tilting system in an openconfiguration according to one embodiment of the present invention.

FIG. 19 is a schematic side view of the door tilting system of FIG. 18in an open configuration.

FIGS. 20-23 are schematic side perspective partial views of a door panelwith a door tilting system in an open configuration according to anembodiment of the present invention.

FIG. 24 is a schematic side perspective partial views of the door panelwith a door tilting system of FIGS. 20-23 in a closed configuration.

Like reference symbols in the various drawings indicate like elements.Throughout the figures, the same reference numerals and characters,unless otherwise stated, are used to denote like features, elements,components or portions of the illustrated embodiments. Moreover, whileembodiments of the subject invention will now be described in detailwith reference to the figures, it is done so in connection with theillustrative embodiments. It is intended that changes and modificationscan be made to the described embodiments without departing from the truescope and spirit of the subject invention as defined by the appendedclaims.

DETAILED DESCRIPTION

In various embodiments, one or more embodiments of one or more doorpanels 10 as described herein can be used or can be integrated to form adoor panel system 11. In various embodiments, any number of embodimentsof one or more door panels 10 can be used to form a door panel system11. In various embodiments, additional door panels can be denoted with aprime symbol, such as a first door panel 10, a second door panel 10′, athird door panel 10″, etc. In one embodiment, FIG. 1 illustrates a doorpanel system 11 having four door panels 10, arranged with two pairspositioned on each side to meet in the middle, in a closed configuration100. A reference arrow numbered 101 illustrates sliding motion along atrack 4, 8 in the direction of the closed configuration 100. In oneembodiment, FIG. 1 illustrates a door panel system 11 having four doorpanels 10, arranged with two pairs positioned on each side to meet inthe middle, in a closed configuration 100. In one embodiment, the closedconfiguration 100 is a sealed configuration. In one embodiment, theclosed configuration 100 comprises having a sealing member 40 in thedoor panel 10 actuated in an extended configuration 110. In oneembodiment, the door panel 10 is configured to open and close between aninterior 120 and an exterior 122. In one embodiment, the interior 120 isthe inside of a building, house, room, or structure. In one embodiment,the exterior 122 is the outside of a building, house, room, orstructure. In various embodiments, although the term interior 120 orexterior 122 is used, the names are being used in reference to a side ofembodiments of the door panel 10 and can simply refer to a side of awall or side of the door panel 10 whether one side is in or out of astructure or wall. In various embodiments the interior 120 and/orexterior 122 can be any combination of inside, outside, both inside orboth outside of a structure, wall, etc.

In one embodiment, the door panel system 11 can have an openconfiguration 102, such as is illustrated at FIG. 2, which illustratesthe door panel system 11 of FIG. 1 in an open configuration 102. In oneembodiment, the open configuration 102 comprises a door panel 10disposed in a pocket 3, or in a pocket configuration 106. In oneembodiment, the open configuration 102 comprises a door panel 10slideably disposed on one or more tracks 4, 8 between the pocketconfiguration 106 and the closed configuration 100.

In one embodiment, each door panel 10 is slideably disposed on a tracksegment 8. The door panels 10 in each pair run on parallel tracks 4, 4′,8, 8′. It is contemplated that multiple door panels 10 having a sealingsystem can be arranged (for example, including two, three, four, five,six, or more door panels 10) to form various sliding door systems 11.While FIGS. 1 and 2 do not necessarily illustrate all the detailedfeatures of the automatically sealing panels discussed herein, it iscontemplated that at least some of the features of the variousembodiments of an automatically sealing door panel 10 can be integratedin one or more door panels of a door panel system 11.

With reference to FIGS. 3-7, in one embodiment, a door panel 10 having asealing system is disclosed. The door panel 10 can be configured to beslideably mounted to a door frame 1 having a header 2 and an upper track4. In one embodiment, one or more door panels 10 can be stored in apocket 3 to the side of the door frame 1 or an upper track 4 or a lowertrack 8. For example, in some embodiments, the door panel 10 can includeone or more upper roller mechanisms 30 configured to ride in the uppertrack 4 to guide the door panel 10 along the upper track 4. In oneembodiment, the door panel 10 has adjustable rollers. In one embodiment,the door panel 10 has weather stripping. In one embodiment, bothadjustable rollers and weather stripping are used together, and as therollers are adjusted the weather stripping may or may not come intocontact with the threshold or the ground.

In one embodiment, the door panel 10 can be configured to be slideablydisposed on a lower track 8. In various embodiments, the lower track 8can be recessed below a floor surface 6, even with a floor surface 6, orraised above a floor surface 6. In the one embodiment, the door panel 10can further be configured to be slideably disposed on a lower track 8recessed into a floor surface 6. For example, in some embodiments, thedoor panel 10 can include one or more lower roller mechanisms 32configured to ride on the lower track 8. In some embodiments, the doorpanel 10 can be configured to run on a lower track 8 that is notrecessed.

Various embodiments of the header 2, upper track 4, floor surface 6, andrecessed lower track 8 are schematically illustrated in at least FIGS.3-7, but the actual configuration may vary depending on the particulardoor installation. For example, it can be desirable, in certainembodiments, that a majority of the weight of the door panel 10 issuspended from the upper track 4 in the header 2. In other embodiments,it can be desirable that a majority of the weight of the door panel 10rests on the lower track 8.

In one embodiment, the door panel 10 can be formed of a framedconstruction comprising a first stile 12 defining a first side edge ofthe door panel, a second stile 14 defining a second side edge of thedoor panel, a lower rail 16 defining a lower edge of the door panel 10,and an upper rail 18 defining an upper edge of the door panel 10. Thestiles and rails 12, 14, 16, 18 bound a central area 20 that in variousembodiments can include a transparent or translucent pane of glass orother material. While one embodiment may include a large transparentcentral area, in some embodiments, the door panel 10 can be ofsubstantially solid construction, such as a wood door panel, or have anopaque or non-transparent central area 20. It is contemplated that asealing system as described herein can be applied to an embodiment ofdoor panel 10 with a substantially solid or non-transparent centralarea, and reference to stiles and rails herein refers to the verticaland horizontal outer sections of the door panel 10.

In various embodiments, the stiles 12, 14 and the rails 16, 18 cancomprise a rigid material such as a wood, metal, plastic or polymer,composite, or other suitable material construction. In some embodiments,the stiles 12, 14 and the rails 16, 18 comprise a hardwood. In someembodiments, the stiles 12, 14 and the rails 16, 18 comprise aluminum.In some embodiments, the stiles 12, 14 and the rails 16, 18 comprise awood reinforced with at least a metallic strip. Where the stiles 12, 14and the rails 16, 18 are comprised of a metal, in some embodiments, theycan be formed by extrusion. In various embodiments, any combination ofmaterials can be used.

In one embodiment, the door panel 10 can also include latch and/or lockhardware disposed in one of the stiles 12, 14 or the rails 16, 18. Thelatch or lock hardware (not illustrated) can be used to selectivelysecure the door panel 10 in a fixed position with respect to anotherdoor panel 10 in a door panel system 11, or to secure the door panel 10to a door frame 1.

In one embodiment, the door panel 10 can further comprise a sealingsystem. In one embodiment, the sealing system comprises a sealing member40 and an actuator 41. In various embodiments the sealing system sealingmember 40 is configured to seal the bottom, side, and/or top of a doorpanel 10. In one embodiment, the sealing system comprises a sealingmember 40 configured to seal the side or top of a door panel 10.Although the some of the described embodiments focus on a sealing member40 configured to seal the bottom of a door panel 10, the sealing member40 embodiments are not limited to such. In one embodiment, the sealingmember 40 has an extended configuration 110 corresponding to a closedconfiguration 100. In one embodiment, the sealing member 40 has aretracted configuration 112 corresponding to an unsealed, less sealedconfiguration, or open configuration 102. In some embodiments, thesealing member 40 can comprise an elongate member that has a lengthsubstantially equal to a length of door panel 10 with respect to an axisdefined by the sliding of the door panel 10 on the upper track 4 and thelower track 6 and a width substantially equal to a width of the doorpanel 10. The sealing member 40 can be formed of a substantially rigidmaterial, such as a metal, wood, plastic or polymer, composite, or othermaterial. In some embodiments, the sealing member 40 can be formed of anextruded aluminum material. As further discussed below, the sealingmember 40 can be movable with respect to a lower edge of the door panel10 between a first position in which the sealing member 40 is in aextended downward from the lower edge of the door panel 10 and a secondposition in which the sealing member is retracted with respect to thedoor panel. In one embodiment, the lower rail 16 can have a recess inwhich at least a portion of the sealing member 40 is disposed when it isin the retracted position 112.

With reference to FIG. 4, which illustrates a bottom view of oneembodiment of the door panel 10, one embodiment of the sealing member 40can include one or more seal elements 42. In one embodiment, the sealelements 42 can be a strip of weather stripping. In one embodiment, theseal element 42 is a brush. In other embodiments, the seal elements 42can be a synthetic or natural rubber seal or gasket. In one embodiment,the seal elements 42 are flat. In one embodiment, the seal elements 42are tapered. In one embodiment, the seal elements 42 are slanted. In oneembodiment, the seal elements 42 are curved. In one embodiment, the sealelements 42 are shaped for interfacing with the door panel 10 to providea seal. In one embodiment, the seal elements 42 are comprised of acompressible material such that by applying pressure to the sealelements 42 when they contact a floor surface 6 or a header 2 or anotherdoor panel 10 or other surface, a substantially airtight and/orwatertight seal is formed. In various embodiments, the seal elements 42can be joined to the sealing member by adhesive, fastener, press-fitinto a groove formed in the sealing member 40, or other joiningtechnique. In one embodiment, two seal elements 42 are present. It iscontemplated that in other embodiments, more or fewer seal elements 42can be used on a seal member 40.

In one embodiment, sealing member 40 can also comprise apertures 44therethrough. In one embodiment, the apertures 44 are sized andconfigured to allow the passage of one or more lower roller mechanisms32. In other embodiments, the sealing member 40 can have a width lessthan substantially the width of the door panel 10, and can be positionedso as not to interfere with the operation of the lower roller mechanisms32. In one embodiment, the sealing member 40 does not have one or moreapertures 44 therethrough.

In one embodiment, the sealing member 40 is coupled to an actuator 41that moves it between a retracted position 46 and an extended, sealedposition 48. In one embodiment, the retracted position 46 corresponds toa retracted configuration 112. In one embodiment, the sealed position 48corresponds to an extended configuration 110. In various embodiments,the seal member 40 moves anywhere in the range of 1-25 mm between theretracted configuration 112 and the extended configuration 110. Invarious embodiments, the seal member 40 moves anywhere in the range of5-20 mm between the retracted configuration 112 and the extendedconfiguration 110. In various embodiments, the seal member 40 movesanywhere in the range of 10-15 mm between the retracted configuration112 and the extended configuration 110. In one embodiment, the sealmember 40 moves approximately 12 mm between the retracted configuration112 and the extended configuration 110. In one embodiment, the actuator41 can comprise an actuation mechanism 50, and a transfer member 54. Inthe illustrated embodiment at FIGS. 3-7, the actuation mechanism 50comprises a roller mechanism configured to roll against an upper surfaceof the header 2. In other embodiments, the actuator 41 can compriseother mechanisms, such as, for example, a skid configured to slide alonga surface of the header 2. In other embodiments, the actuator 41 can bepositioned at other locations. For example, in some embodiments, theactuator 41 can be a mechanism or trigger positioned to actuate againsta wall, a pocket 3, another door panel 10, the floor surface 6, or in arecess in the floor surface 6. In some embodiments, the actuationmechanism 50 can be a roller mechanism positioned to roll against thefloor surface 6, or in a recess in the floor surface 6. In otherembodiments, the actuator 41 can be positioned in one of the stiles 12,14. In other embodiments, the actuator 41 can be positioned in one ofthe rails 16, 18.

In one embodiment, the actuation mechanism 50 can be positioned in anoff-center location with respect to the width of the door panel 10. Thisoff-centered position can prevent interference between the actuationmechanism 50 and the header 2 or the upper track 4 or the lower track 8.In some embodiments, the actuator 41 comprises more than one actuationmechanism 50 and transfer member 54, and the individual actuationmechanisms 50 can be positioned on opposite sides of a midpoint of thewidth of the door panel 10. This opposite side positioning can preventinterference between more than one actuation mechanism 50 or unintendedactuation of one of the actuation mechanisms 50 as the door is slid.

In one embodiment, a transfer member 54 operatively couples theactuation mechanism 50 to the sealing member 40. As illustrated, thetransfer member 54 is schematically represented as an elongate member orstructure. It is contemplated that in some embodiments, the transfermember 54 can be a metallic or non-metallic bar or rod. In otherembodiments, the transfer member 54 can be a nonmetallic bar or rod, alinkage assembly, or another coupling member. The illustrated rollermechanism is rotatably coupled to one end of the transfer member 50,while the sealing member 40 is coupled to the opposite end. Accordingly,displacement of the actuation mechanism 50 in a vertical direction cancause a corresponding displacement of the sealing member 40.

With reference to FIGS. 3 and 5, in the illustrated embodiments, thetransfer members 54 extend substantially vertically through the stiles12, 14 between the actuation mechanisms 50, and the sealing member 40.In other embodiments, the actuation members 50 may be positioned atother locations on the door panel 10, and therefore, it is contemplatedthat the routing of the transfer member 54 can extend at least partiallyhorizontally or completely horizontally, such as through the lower orupper rails 16, 18 in some embodiments. In some embodiments, thetransfer member 54 can extend through tunnels, channels, or otherconduits in the stiles 12, 14. In another embodiment, the transfermember 54 can extend through the central area 20.

In one embodiment, the transfer members 54 are coupled to the sealingmember 40 near or adjacent to its ends. In other embodiments, it can bedesirable to apply pressure to the sealing member at one or morelocations between its ends. Therefore, in one embodiment, it can bedesirable to that the transfer member runs substantially vertically in astile 14, 16, then horizontally in the lower rail 16 to couple to thesealing member 40 at a location between the ends where force applicationis desired.

In some embodiments, the actuator 41 can comprise a biasing member 52 tobias the actuator 41 into a position corresponding to a retractedconfiguration 112 of sealing member 40. The biasing members have beenremoved from FIGS. 5 and 7 for clarity. In one embodiment, the biasingmember 52 tends to press the actuation mechanism 50 towards an uppersurface of the header 2, thus pulling the sealing member 40 into aretracted position 46. In other embodiments, a biasing member 52 couldbe directly coupled to the sealing member 40 to bias it into theretracted position 46 corresponding to retracted configuration 112. Inthe illustrated embodiment, each actuation mechanism 50 is coupled to abiasing member 52. In other embodiments having more than one actuationmechanism 50, one, some, or all of the actuation mechanisms can becoupled to one or more biasing members 52.

With reference to FIGS. 3, 5, 6, and 7, one embodiment of the operationof the sealing system is illustrated with respect to the door panel 10.As noted above, in one embodiment, the sealing member 40 is in theretracted position 46 with respect to the door panel 10. Thus, the doorpanel 10 is freely slideable with respect to the upper track 4 and lowertrack 8 with no unwanted drag from a sliding seal and no correspondingwear on the seal. However, when the door panel 10 reaches apredetermined location with respect to the door frame 1, the actuator 41extends the sealing member 40 such that the seal elements 42 form a sealwith the floor surface 6. In one embodiment, the predetermined locationcorresponds to the closed configuration of the door panel system 100.

In some embodiments, a door panel system 11 can include one or moreactuation surfaces 60 positioned on the header 2. In variousembodiments, the actuation surface 60 can be used to assist in sealingthe top, bottom, or side of the door panel 10. In one embodiment, theactuation surface 60 tilts the top of the door panel 10 to seal the topof the door panel 10. In one embodiment, the actuation surface 60 isconfigured to interact with the actuation mechanism 50 of the actuator41 of the door panel 10. For example, in the illustrated embodiment ofFIGS. 3-7, where the actuation mechanism 50 comprises a roller mechanism30, the actuation surface 60 can comprise an inclined ramp or wedgesurface configured to displace the roller vertically as it rolls on theramp. In one embodiment, the ramp has a substantially constant slope. Itis contemplated, however, that in other embodiments, the ramp can have avariable slope profile, such as a curve. Further, in some embodiments,the ramp can include a dip or detent to define a rest position of thedoor panel 10, such that the initial application of force is required tomove the actuation mechanism 50 (and therefore, the associated doorpanel 10) from the dip or detent.

In one embodiment, once the door panel 10 has reached the predeterminedlocation corresponding to the closed configuration 100, the actuationmechanism 50 is advanced along or up the actuation surface 60 by thecontinued sliding of the door panel 10. This advancement of theactuation mechanism 50 with respect to the actuation surface 60displaces the actuation mechanism 50 vertically. In one embodiment, theactuation mechanism 50 is coupled to the sealing member 40 via thetransfer member 54, therefore this vertical displacement extends thesealing member away from the lower edge of the door panel and towardsthe extended position. Typically, the predetermined location foractuation of the actuator 41 corresponds to the closed position of thedoor panel 10. Thus, when the door panel 10 is closed, the floor surface6 under the door can be sealed. Accordingly, in one embodiment of a doorpanel 10 including a sealing system as described herein can be desirablyused for an exterior door, where it can be advantageous to blockexternal air, water and/or debris when the door is closed.

In various embodiments, a sealing system for a door panel 10 asdescribed herein can be applied to a door panel 10 of a sliding doorsystem to create a seal with substantially any substantially levelflooring surface, and can advantageously provide sealing even onirregular flooring surfaces. For example, the sealing system can workwith any solid track material or flooring options, such as stone,cement, aluminum, wood, Corian, glass, or other materials. Unlike othermulti-slide door systems, the sealing member 40 for a door paneldescribed herein can compensate for irregularities in the flooringsurface and substantially seal the door against the elements.

In one embodiment, no large leverage-generating handle is required tofacilitate the sliding operation of the door panels 10 described herein.Thus, in one embodiment, a door panel 10 having the sealing systemdescribed herein can provide sealing ability and be able to be retractedinto a pocket 3. Additionally, in various embodiments, the sealingsystem described herein can be produced with a reduced parts count andat a lower cost as it avoids the hardware-intensive lever mechanism.Also, tracks for panels of a multi-slide door system without a largehandle can be positioned closer together than corresponding tracks for asimilar system having large handles. This closer track spacingadvantageously allows the door systems described herein to be positionedin walls or pockets having reduced depth.

In one embodiment, a sliding door system 11 with automatically sealingdoor panels 10 can include rollers 30, 32 that are vertically adjustablewith respect to the door frame 10. In contrast, many other multi-slidedoor systems lack adjustable rollers. Moreover, the adjustment ofrollers in other sliding door panels 10 can be particularly problematicas a roller spacing adjustment can significantly impact door sealingperformance. For example, a roller adjustment can cause a gap to formbetween the door and the floor surface 6, or can cause the seal to wearextremely quickly. This difficulty in roller height adjustment can beexperienced often with existing sliding door systems as a buildingand/or door frame settles over time. In contrast, the roller heightspacing of the door panels described herein is easily adjustable withouta significant impact on the sealing system, which is actuated as thedoor panel is at a predetermined position.

In one embodiment, a sliding door system 11 with automatically sealingdoor panels 10 can be integrated with a motor driven opening and closingsystem to form an automatic, motor-driven door system. Typically,existing automatic doors have been difficult to seal as theirmotor-driven nature can prematurely wear seals as compared with manualoperation. Also, it can be complex and costly to configure a motorizedsystem to actuate a lever handle for each door panel of a prior artmultislide system. In contrast, with a door panel 10 as described invarious embodiments herein, the sealing member 40 is extended at apredetermined location (such as when the door is in a closedconfiguration 100) and, thus, is not dragged along the floor surface 6by a motor drive mechanism. Moreover, the motor-driven system does notneed to actuate individual handles as the sealing members 40 aredeployed in response to a position of the door panel 10. Thus, theautomatically sealing door panels 10 described herein can be relativelyeasily integrated with a motor-driven system.

In various embodiments, a door panel system 11 can include any of theembodiments of a door panel 10 described herein. In one embodiment, adoor panel 10 a includes a system for actuating a bottom sealing member40 located in the bottom portion of the door panel 10 a. In oneembodiment, a door panel 10 a includes a system for actuating a seal atthe top of the door panel 10 a. In one embodiment, a door panel 10 aincludes a system for sealing a side or sides of the door panels, suchas with adjacent door panels 10 a, 10 a′, etc. or sealing the side of adoor panel 10 a with a wall, pocket 3, or other structure. In variousembodiments, the door panel 10 a can be driven manually, by motor, bypressure, by gravity, or by other drive systems.

In various embodiments, the door panel 10 a can have any of the featuresor structure of various embodiments of the door panel 10 describedabove. For example, the door panel 10 a can be configured to beslideably moveable with respect to a header 2. In one embodiment, theheader 2 can have an upper track 4. In one embodiment, the door panel 10a can be configured to be slideably disposed on a lower track 8. Invarious embodiments, the lower track 8 can be recessed below a floorsurface 6, even with a floor surface 6, or raised above a floor surface6. In some embodiments, the door panel 10 a can include one or morelower roller mechanisms 32 configured to ride on the lower track 8.Various embodiments of the door panel 10 a, door frame 1, header 2,upper track 4, floor surface 6, and recessed lower track 8 can havevarying configurations depending on the particular door installation. Inone embodiment, door panel 10 a is configured to apply a majority of theweight of the door panel 10 a on a lower track 8.

In various embodiments, the door panel 10 can further comprise a sealingsystem. In one embodiment, the sealing system comprises a sealing member40 comprised of one or more seal elements 42, and an actuator 41. In oneembodiment, the sealing member 40 is coupled to an actuator 41 thatmoves it between a retracted position 46 and an extended, sealedposition 48. In one embodiment, the retracted position 46 corresponds toa retracted configuration 112. In one embodiment, the sealed position 48corresponds to an extended configuration 110. In one embodiment, theactuator 41 can comprise an actuation mechanism 50, and a transfermember 54.

In one embodiment, the transfer member 54 is oriented in a generallyhorizontal position in or near the bottom of the door panel 10 a. In oneembodiment, the actuation mechanism 50 is moved in a direction arrow 51to actuate. In various embodiments the actuation mechanism 50 can belocated at the leading end, trailing end, or anywhere along the lengthof a door panel 10 a. In various embodiments, the actuation mechanism 50is an extendable rod or button at the leading end of the door panel 10 aconfigured to actuate the actuator 41 when the door panel 10 a impactsor abuts a surface, such as a wall, door frame 1, another door panel 10a, or other object. In one embodiment, the actuation mechanism 50 islocated to a side, either on the interior 120 side or the exterior side122, and consists of a trigger type mechanism configured to actuate theactuator 41 when the door panel 10 a impacts or abuts a surface, such asa wall, door frame 1, another door panel 10 a, or other interface. Inone embodiment, the actuation mechanism 50 is located at or near thetrailing edge of the door panel 10 a, and consists of a hook typemechanism configured to actuate the actuator 41 when the door panel 10 aimpacts or abuts an interface, such as a wall, door frame 1, anotherdoor panel 10 a, or other interface.

In the illustrated embodiment at FIGS. 12-15, the actuation mechanism 50a is an offset trigger surface attached to a horizontal transfer member54. In one embodiment, the actuator 41 can comprise a biasing member 52to bias the actuator 41 into a position corresponding to a retractedconfiguration 112 of sealing member 40. In one embodiment, the actuationmechanism 50 a moves the horizontal transfer member 54 in the samedirection as the movement of the actuation mechanism 50 a. In oneembodiment, the transfer member 54 is slideably disposed and moveablewithin or near the lower rail 16. In one embodiment, the sealing member40 is moved between the retracted position 46 and extended position 48with one or more seal actuation mechanisms 70. In various embodiments,one, two, three, four, five, six or more seal actuation mechanisms 70can be used.

In various embodiments the seal actuation mechanism 70 can be any sortof mechanical, pneumatic, hydraulic, or other mechanism for actuatingthe seal member 40. For example, the seal actuation mechanism 70 caninclude gas pressure, air pressure, fluid pressure, a solenoid, a leadscrew, a linkage, magnetism or other means for actuating the seal member40. In one embodiment, the seal actuation mechanism 70 is a linkage. Inone embodiment, the seal actuation mechanism 70 is a scissor mechanism.In one embodiment, the seal actuation mechanism 70 is at least a threepoint linkage.

In one embodiment, as illustrated at FIGS. 14-18, the seal actuationmechanism 70 comprises a transfer member interface 72, a door panelinterface 74 and a seal member interface 76. In one embodiment, thetransfer member interface 72, a door panel interface 74 and a sealmember interface 76 cooperate in a manner similar to a scissor hinge totranslate the horizontal sliding motion of a transfer member 54 to avertical actuation of a seal member 40.

In various embodiments the transfer member interface 72 is permanentlyor removably attachable to the transfer member 54. For example, in someembodiments the transfer member interface 72 is connected to thetransfer member 54 with a pin, a screw, an interlock, a lock, a biasedpin, a pin attached to a spring, or other type of attachment mechanism.In one embodiment, the door panel interface 74 is attached with a pivothinge or pivot point to any of the rails or stiles, or other suitableportion of the door panel 10 a. In one embodiment, the door panelinterface 74 is attached with a pivot hinge or pivot point to the bottomrail 16. In one embodiment, the door seal member interface 76 isattached with a pivot hinge or pivot point to one or more a seal members40. In one embodiment, the seal actuation mechanism 70 comprises atleast a first link 78 pivotally attached to the transfer memberinterface 72 and the seal member interface 76. In one embodiment, thefirst link 78 is pivotally attached at a first link first end to thetransfer member interface 72 is pivotally attached at a first linksecond end to the seal member interface 76. In one embodiment, the firstlink 78 is pivotally attached at an intermediate point 82 to a secondlink 80. In one embodiment, the second link 80 is pivotally attached ata second link first end to the door panel interface 74. In one optionalembodiment, the second link 80 may also extend to a second link secondend at the intermediate point 82. In one optional embodiment, the secondlink 80 may also extend to a second link second end at an extendedsecond link second end 84. In various embodiments the optional extendedsecond link second end 84 may be attached to nothing, or pivotallyattached to a second seal member interface 76′ (not illustrated here)that is slideably disposed along the seal member 40. As illustrated inFIGS. 16 and 17, in one embodiment, a seal actuation mechanism 70 is ascissor mechanism shown with an empty extended second link second end84.

In one embodiment, the transfer member interface 72 is connected to thetransfer member 54 with a biased pin 73. In one embodiment, the biasedpin engages the transfer member 54 with a complimentarily shapedinterface, in which the sliding motion of the transfer member 54slideably moves the transfer member interface 72 in the same directionas the transfer member 54. In one embodiment, the biased pin 73 has aspring mechanism in it that allows over travel of the transfer member54. This may comes into play when any of the lower roller mechanisms 32are adjusted to different heights and the gap under the door isdifferent in different locations. For example, in one embodiment, thefloor surface 6 may be sloped or contain discontinuities. For example,in one embodiment, one side of door panel 10 a may have a ¼″ gap and theother side may have a ⅜″ gap the bias or spring mechanism allows thebiased pin 73 that is attached to the transfer member 54 to travelfurther once the ¼″ gap has come into contact with the floor surface 6,allowing for an equal pressure to be applied across the sealing member40 even though the gap to be sealed varies. In one embodiment, thetransfer member 54 is mounted to an actuation mechanism 50 a that ismounted in a door panel interlock as adjacent door panels 10 a travel totheir respective home positions at the closed configuration 100. In oneembodiment, the actuation mechanism 50 a is a trigger that is pulled,thus forcing the sealing member 40 to seal to the floor surface 6.

In one embodiment, the door panel interface 74 and a seal memberinterface 76 have one or more biasing members 52 attached between them.In one embodiment, the biasing member 52 is a spring. In one embodiment,the biasing member 52 helps retract the seal actuation mechanism 70forcing the sealing member 40 into a retracted position 46, thusallowing the seal to ride free of the floor surface 6 or a thresholdwhen the door panel 10 a is not in its home, closed configuration 100.

In one embodiment, a door panel 10 a is configured to seal the top ofthe door at the closed configuration 100. In one embodiment, the doorpanel 10 a seals the top of the door at the closed configuration 100with a door tilting system 130. In one embodiment, the door tiltingsystem 130 is configured to tilt the door in a tilt direction 131 thatis roughly normal, or perpendicular to the upper track 4 and/or thelower track 8. In one embodiment, a door panel 10 a is configured toslide from side to side, with the door tilting system 130 configured totilt the door panel 10 a toward the interior 120, exterior 122, or both.In one embodiment, as illustrated at FIGS. 18-19, the door tiltingsystem 130 is configured to tilt the door panel 10 a toward the exterior122 in order to effectuate a seal to keep exterior 122 elements, such aswind, air, water, or other materials, from entering the various tracksor door mechanisms.

In one embodiment, the door tilting system 130 comprises one or moreactuation surfaces 60 positioned on the header 2. In one embodiment, theactuation surface 60 tilts the door panel 10 a at the closedconfiguration 100 to seal the top of the door. In one embodiment, theactuation surface 60 interfaces with a corresponding door tiltinginterface 132 attached to the door panel 10 a to seal the top of thedoor. In various embodiments, the actuation surfaces 60 can be verticalramps, horizontal ramps, bumper, wedges, guides, blocks, or other shapesto tilt the door panel 10 a when it arrives at a closed configuration100. In various embodiments, the door tilting system 130 can compriseone, two, three, four, five, six or more actuation surfaces 60configured to correspond to a closed position 100 of a door panel 10 a.In various embodiments, the door tilting system 130 can comprise one,two, three, four, five, six or more door tilting interface 132configured to correspond to a closed position 100 of a door panel 10 a.

In one embodiment, illustrated at FIGS. 18 and 19, two actuationsurfaces 60 and two corresponding door tilting interfaces 132 illustratea door tilting system 130. In one embodiment, the actuation surfaces 60include two offset wedges, a proximal or trailing wedge 60 a and adistal or leading wedge 60 b. In one embodiment, the door tiltinginterfaces 132 include two offset door tilting interfaces, a proximal ortrailing door tilting interface 132 a and a distal or leading doortilting interface 132 b. The offset wedges and door tilting interfacesare configured to allow the leading door tilting interface 132 b toslide toward the closed configuration 100 in a direction 101 withoutinterference from the trailing wedge 60 a. In one embodiment, thetrailing wedge 60 a and the trailing door tilting interface 132 a aretaller or set higher than the leading wedge 60 b and the leading doortilting interface 132 b. Numerous other embodiments can use varyingcombinations of interfaces with any number of actuation surfaces 60and/or door tilting interfaces 132. FIGS. 20-24 illustrate a series ofpositions between the open configuration 102 and a closed configuration100 of an embodiment of a door panel 10 a and a header 2 with actuationsurfaces 60 a, 60 b and tilting interfaces 132 a, 132 b. FIG. 20illustrates a door panel 10 a in an open position 102, with a distaldoor tilting interface 132 a proximal a leading wedge 60 b. FIGS. 21-23illustrate the relative movement of the door panel 10 a in a direction101 toward the closed position 100, with offset wedges and door tiltinginterfaces passing each other until the corresponding pairs of wedgesand door tilting interfaces meet at the closed position 100 in FIG. 24.

In one embodiment, the actuation surfaces 60 and/or door tiltinginterfaces 132 compress a seal, such as a seal element 42 at or near thetop of the door. In one embodiment, the seal element 42 is staticweather stripping mounted onto the header 2 or top track 4. In variousembodiments, the seal element 42 can be attached to the door panel 10 aalone, the header 2 alone, or both the door panel 10 a and the header 2.In one embodiment, once the door panel 10 a comes to the home positionat the closed configuration 100, the force imparted between theinterference or contact between the one or more actuation surfaces 60and corresponding door tilting interfaces 132 tilts the door panel 10 aand compresses the top rail of the door into the seal element 42.

In one embodiment, the door tilting system 130 comprises a guide 136. Inone embodiment, the guide 136 is located on the opposite side of theactuation surface 60. In one embodiment, the guide is a deflectable,biased guide configured to help the door panel 10 a slide while reducingrattling or bouncing by taking up space between the top of the doorpanel 10 a and the header 2 when the door panel system 11 is in an openconfiguration 102. In one embodiment, the guide 136 is a plastic spring.In one embodiment, the guide 136 can provide a smooth, low frictiongliding surface interface between the door panel 10 a and the header 2or upper track 4. In one embodiment, once the door panel 10 a comes tothe home position at the closed configuration 100, the contact betweenthe one or more actuation surfaces 60 and corresponding door tiltinginterfaces 132 tilts the door panel 10 a in a tilt direction 131 andcompresses, deflects, or deforms the guide 136. In one embodiment, whenthe door panel 10 a is in an open configuration, the guide 136 expands,deflects, or reforms back to a shape to assist in rattle reduction andassist in sliding of the door panel 10 a.

In various embodiments, a door panel system 11 can comprise one or moredoor panels 10, 10 a configured to seal along one or more sides of adoor panel 10, 10 a. In various embodiments, the sides of the doorpanels 10, 10 a can be configured to overlap, seal, include aninterface, a seal element 42, or other means to reduce fluidcommunication between the interior 120 and exterior 122 along the sidesof the door panels 10, 10 a.

In one embodiment, a door panel system 11 comprising more than one doorpanel 10, 10 a can be extended from pocket 3 or other starting openconfiguration 102 and moved to a closed configuration 100 by moving thelead door panel 10, 10 a and moving it toward the closed configuration100 in a direction 101. Subsequent adjacent door panels 10, 10 a can bepulled along like a train or series of doors on the same or parallel, orroughly parallel tracks 4, 8 through manual or motor driven actuation ofthe lead door panel 10, 10 a.

It will be understood by those of skill in the art that numerous andvarious modifications can be made without departing from the spirit ofthe present invention. For example, although several of the embodimentsdescribed herein discuss linear movement of door panels along tracksthat can be parallel or linear, it is also contemplated that doorpanels, track, and related movement can be accomplished with roundeddoors and or tracks, curves and/or arcs, or other shapes as well.Therefore, it should be clearly understood that the forms of the presentinvention are illustrative only and are not intended to limit the scopeof the present invention. Although a few embodiments have been describedin detail above, other modifications are possible. Other embodiments maybe within the scope of the following claims. It will be understood thatthe foregoing is only illustrative of the principles of the invention,and that various modifications, alterations, and combinations can bemade by those skilled in the art without departing from the scope andspirit of the invention. Accordingly, it is not intended that theinvention be limited, except as by the appended claims.

What is claimed is:
 1. A sealable sliding door system comprising: aheader comprising at least one tilt actuation surface; a lower trackparallel to the header; and a door panel slideably moveable along thelower track and the header, the door panel comprising: a panel surfacebounded by a first side edge, a second side edge, an upper edge and alower edge; and an upper sealing edge comprising at least one doortilting interface configured to interact with the at least one tiltactuation surface, which tilts the door panel in a direction normal tothe panel surface to reduce an upper distance between the upper edge ofthe door panel surface and the header when the door panel reaches apredetermined location corresponding to a sealed configuration.
 2. Thesealable sliding door system of claim 1, further comprising: a lowersealing member movably actuatable with respect to a lower sealing edgeof the door panel between a refracted position and a sealed position,the retracted position configured for slideable movement of the doorpanel along the lower track, the sealed position closing a lowerdistance between the lower sealing edge of the door panel and a floorsurface.
 3. The sealable sliding door system of claim 2, furthercomprising: an actuator configured to advance the lower sealing memberinto the sealed position when the door panel reaches the predeterminedlocation corresponding to the closed configuration.
 4. The sealablesliding door system of claim 2, wherein the lower sealing edgecorresponds to the lower edge of the door panel and wherein angularmovement of the door panel with respect to the lower track defines atilting axis of the door panel.
 5. The sealable sliding door system ofclaim 2, wherein linear movement of the door panel with respect to thelower track defines a sliding axis of the door panel, wherein the doorpanel has a length along the sliding axis, and wherein the lower sealingmember has a length that is substantially equal to the length of thedoor panel.
 6. The sealable sliding door system of claim 3, wherein thelower sealing member is connected to one or more seal actuationmechanisms comprising at least a three point linkage.
 7. The sealablesliding door system of claim 3, wherein the lower sealing member isconnected to one or more seal actuation mechanisms comprising a scissormechanism.
 8. The sealable sliding door system of claim 1, furthercomprising a seal element disposed between the upper edge of the doorpanel and the header.
 9. The sealable sliding door system of claim 1,further comprising a second upper sealing edge corresponding to theupper edge of the door panel, the second upper sealing edge configuredto reduce a second upper distance between the upper edge of the doorpanel and the header when the door panel reaches a second predeterminedlocation corresponding to a second closed configuration.
 10. Thesealable sliding door system of claim 9, further comprising a secondactuation surface and a second door tilting interface configured to tiltthe door panel when the door panel reaches the second predeterminedlocation corresponding to the second closed configuration, whereinmovement of the door panel in a tilt direction reduces the second upperdistance.
 11. The sealable sliding door system of claim 2, wherein thedoor panel further comprises a biasing member configured to bias thelower sealing member into the retracted position.
 12. The sealablesliding door system of claim 1, further comprising a second door panelslideably moveable along a second lower track and the header.
 13. Thesealable sliding door system of claim 1, wherein the actuator comprisesan actuation mechanism with a substantially horizontal transfer memberslideably disposed and linearly moveable within or near the lower edgeof the door panel, wherein the actuation mechanism is configured toautomatically actuate upon contact with an actuation surface.
 14. Thesealable sliding door system of claim 1, wherein the sealedconfiguration reduces any one of the group of air communication, gascommunication, liquid communication, water communication, and fluidcommunication through the sealable sliding door system.
 15. The sealablesliding door system of claim 1, wherein the door panel comprises awindow.
 16. A tiltable sealing door panel comprising: a first doorstile; a second door stile opposite the first door stile; an upper rail;a lower rail; a central area bounded by the first door stile, the seconddoor stile, the upper rail, and the lower rail; an upper tiltingmechanism configured to seal the door panel to a header of a door frame,wherein the upper tilting mechanism comprises a door tilting interfaceon the upper rail and a tilt actuation surface on the header configuredto tilt the central area about the lower rail to reduce an upperdistance between the upper edge of the door panel and the header whenthe door panel reaches a predetermined location corresponding to asealed configuration.
 17. The tiltable sealing door panel of claim 16,further comprising a lower sealing mechanism comprising: a lower sealingmember positioned on the lower rail and movable between a first positionin which the lower sealing member is extended downward with respect tothe lower rail, and a second position in which the lower sealing memberis retracted with respect to the lower rail; and an actuator configuredto move the lower sealing member between the first position and thesecond position, wherein the actuator comprises an actuation mechanismand a sliding transfer member coupling the actuation mechanism to thelower sealing member.
 18. The tiltable sealing door panel of claim 17,wherein the actuation mechanism comprises a roller mechanism configuredto roll on an actuation surface on the door frame.
 19. The tiltablesealing door panel of claim 18, wherein the roller mechanism isrotatably mounted to the upper rail and configured to roll on anactuation surface on the header of the door frame.
 20. The tiltablesealing door panel of claim 18, wherein the actuator comprises: a firstroller mechanism mounted to the upper rail and configured to roll on anactuation surface on the header of the door frame; a second rollermechanism mounted to the upper rail and configured to roll on anactuation surface on the header of the door frame; a first transfermember extending through the first door stile and coupling the firstroller mechanism to the sealing member; and a second transfer memberextending through the second door stile and coupling the second rollermechanism to the sealing member.